Click the correct answer (True or False).
Click the correct answer.
Noise is produced by which of the following?
Irregular vibrations
Regular vibrations
Both irregular and regular vibrations
Either irregular or regular vibrations
What is the audible range of sound for human beings?
200–2000 Hz
20–20000 Hz
20–23000 Hz
220–20000 Hz
On which of the following factors does the loudness of a sound depend?
Amplitude
Pitch
Medium
Frequency
In which of the following materials is the speed of sound maximum?
Iron
Sea water
Freshwater
Air
Sound can travel through which of the following?
Gases only
Solids only
Liquids only
Solids, liquids and gases
Which of the following voices is likely to have minimum frequency?
Baby girl
Baby boy
A man
A woman
Click the correct answer.
The frequency of a sound determines its
.
pitch
loudness
speed
wave
Sound above 20000 Hz are called
.
infrasonic sounds and cannot be heard
ultrasonic sounds and cannot be heard
ultrasonic sounds and can be heard
infrasonic sounds and can be heard
The more is the frequency, shriller is the
.
wave
vibration
sound
pitch
Sound cannot travel through
.
vacuum
glass
solid
liquid
is determined by the amplitude of vibration.
Pitch
Loudness
Speed
Wave
